Molecularly - Law Dictionary Search Results
Penicillinase
An enzyme which destroys the antibacterial activity of penicillin by hydrolyzing the amide bond in the beta lactam ring Many penicillinases are known and are produced by a wide variety of bacteria The production of penicillinase...
optical activity
the ability of a chemical compound to rotate the plane of plane polarized light This is found only in chemicals whose molecular structure does not have a plane of symmetry and is common in biochemical compounds
open chain
not cyclic having no rings of atoms within the molecular structure having an open chain structure Opposite of cyclic
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Nitrogen
A colorless nonmetallic element of atomic number 7 tasteless and odorless comprising four fifths of the atmosphere by volume in the form of molecular nitrogen N2 It is chemically very inert in the free state and...
Metameric
Having the same molecular formula but possessing a different bonding structure and different properties as methyl ether and ethyl alcohol are metameric compounds See Isomeric
mol
A quantity of a substance equal to the molecular weight of a substance expressed in grams a gram molecule the basic unit of amount of substance adopted under the System International dUnites as he added two...
Microcrith
The weight of the half hydrogen molecule or of the hydrogen atom at one time taken as the standard in comparing the atomic weights of the elements thus an atom of oxygen weighs sixteen microcriths This...
mechanism of action
The mechanism2 by which a pharmacologically active substance produces an effect on a living organism or in a biochemical system as the mechanism of action of actinomycin involves its binding to DNA The mechanism of action...
mass spectrometer
An analytical instrument which determines the mass of molecules of a substance or fragments of its molecules It functions by injecting ionized moecules or molecular gragments into a vacuum chamber subjected to a strong magnetic field...
isomeric
Having the same chemical composition and molecular weight having the same number of atoms of each kind in the molecule said of chemical compounds with known chemical composition This property used to be called metameric to...
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